core.h File Reference

Core ROOT-Sim functionalities. More...

#include <float.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <ROOT-Sim.h>

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Macros
#define	max(a, b)
	Statement expression to compute the max between two values with no double evaluation side effect. More...
#define	min(a, b)
	Statement expression to compute the min between two values with no double evaluation side effect. More...
#define	CACHE_LINE_SIZE   64
	The size of a cpu cache line used to align some data structures in order to avoid false sharing.
#define	likely(exp)   __builtin_expect(!!(exp), 1)
	Optimize the branch as likely taken.
#define	unlikely(exp)   __builtin_expect((exp), 0)
	Optimize the branch as likely not taken.
#define	SIMTIME_MAX   DBL_MAX
	The maximum value of the logical simulation time, semantically never.
#define	MAX_NODES   (1 << 16)
	The maximum number of supported MPI nodes. More...
#define	MAX_THREADS_EXP   12
	The maximum number of supported threads. More...
#define	MAX_THREADS   (1 << MAX_THREADS_EXP)
	Maximum number of threads that can be supported.

Typedefs
typedef unsigned	rid_t
	Used to identify in a node the computing resources (threads at the moment)
typedef int	nid_t
	Used to identify MPI nodes in a distributed environment.

Variables
lp_id_t	n_lps_node
	The total number of LPs hosted in the node. More...
__thread rid_t	rid
	The identifier of the thread.
nid_t	n_nodes
	The total number of MPI nodes in the simulation.
nid_t	nid
	The node identifier of the node.
char *	core_version
	A string keeping the textual representation of the version of the core.
struct simulation_configuration	global_config
	The global configuration of the simulation, passed by the model.

Detailed Description

Core ROOT-Sim functionalities.

Core ROOT-Sim functionalities

Copyright

Copyright (C) 2008-2022 HPDCS Group https://hpdcs.github.io

Macro Definition Documentation

max

#define max	(		a,
			b
	)

Value:

    __extension__({                                                                                                \
        __typeof__(a) _a = (a);                                                                                \
        __typeof__(b) _b = (b);                                                                                \
        _a > _b ? _a : _b;                                                                                     \
    })

Statement expression to compute the max between two values with no double evaluation side effect.

MAX_NODES

#define MAX_NODES   (1 << 16)

The maximum number of supported MPI nodes.

FIXME: this is used very limitedly. Consider its removal

MAX_THREADS_EXP

#define MAX_THREADS_EXP   12

The maximum number of supported threads.

FIXME: this is used very limitedly. Consider its removal

min

#define min	(		a,
			b
	)

Value:

    __extension__({                                                                                                \
        __typeof__(a) _a = (a);                                                                                \
        __typeof__(b) _b = (b);                                                                                \
        _a < _b ? _a : _b;                                                                                     \
    })

Statement expression to compute the min between two values with no double evaluation side effect.

Variable Documentation

n_lps_node

lp_id_t n_lps_node

extern

The total number of LPs hosted in the node.

The total number of LPs hosted in the node.